Whole plant FCB function realization of coal-fired power plants and the control strategy

DING Yongyun; HUANG Xiaopeng; LU Junfeng; WU Guangwei; MA Minghong

doi:10.19666/j.rlfd.202003056

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Whole plant FCB function realization of coal-fired power plants and the control strategy

Thermal Power Generation Vol. 49, Issue 12, Pages: 151-157(2020)

更新时间：2025-09-28

- Whole plant FCB function realization of coal-fired power plants and the control strategy
- 作者机构：
  
  1. 辽宁东科电力有限公司
  2. 国电科学技术研究院沈阳电力技术分院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202003056
  CLC： TM621
- Published Online：01 December 2020，
  
  Published：2020
- 稿件说明：
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DING Yongyun, HUANG Xiaopeng, LU Junfeng, et al. Whole plant FCB function realization of coal-fired power plants and the control strategy[J]. Thermal Power Generation, 2020, 49(12): 151-157.
DOI：

DING Yongyun, HUANG Xiaopeng, LU Junfeng, et al. Whole plant FCB function realization of coal-fired power plants and the control strategy[J]. Thermal Power Generation, 2020, 49(12): 151-157. DOI： 10.19666/j.rlfd.202003056.

摘要

国产出口火电机组中普遍要求具备快速切负荷(FCB)功能

且在FCB功能设计时需要考虑多台机组的FCB情况。本文以老挝HongSa 3×626 MW燃煤电站为例

对FCB功能进行控制需求和机组系统配置分析

根据电站既有的配置

制定了每台机组独自转入FCB工况的控制方案

并提出判别电气FCB的方法及机组FCB过程中的关键控制策略。通过该机组FCB试验和实际运行中触发全厂FCB的动作情况

证明全厂FCB控制方案和机组FCB控制策略是正确和有效的

这为电网和机组带来较大的安全效益和经济效益

可供大型火电机组的FCB功能设计参考。

Abstract

The fast cut back(FCB) function is generally required in domestic export thermal power units

and in the FCB function design

it is necessary to consider the FCB situation of multiple units. By taking the Laos HongSa 3×626 MW coal-fired power station as an example

this article analyzes the FCB function control requirements and unit system configuration. According to the existing configuration of the power station

a control scheme was formulated for each unit to transfer to FCB mode independently

a method of judging electrical FCB was proposed

and the key control strategy was suggested in the unit FCB process. The unit's FCB test and actual operation of triggering the whole plant FCB proved that

the whole plant FCB control scheme and the unit's FCB control strategy are correct and effective. This brings huge safety and economic benefits to the power grid and power stations

and can be used as a reference for the FCB function design of large thermal power units.

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